/**
 * Created by JetBrains WebStorm.
 * User: Administrator
 * Date: 13-2-28
 * Time: 下午10:08
 * To change this template use File | Settings | File Templates.
 */
function showPic(whichpic){
	if(!document.getElementById('placeholder')) return false;
    var source = whichpic.getAttribute('href');
    var placeholder = document.getElementById('placeholder');
    placeholder.setAttribute('src',source);

	if(!document.getElementById('description')) return true;
	if(whichpic.getAttribute('title')){
		var text = whichpic.getAttribute('title');
	}else{
		var text = "";
	}
    var description = document.getElementById('description');
    //alert(description.childNodes[0].nodeValue);
    if(description.firstChild.nodeType == 3){
    	description.firstChild.nodeValue = text;
    }
    return true;
};
function countBodyChildren(){
    var body_element = document.getElementsByTagName('body')[0];
    //alert(body_element.childNodes.length);
    //alert(body_element.nodeType);
};
function prepareGallery(){
    if(!document.getElementsByTagName) return false;
    if(!document.getElementById) return false;
    if(!document.getElementById('imagegallery')) return false;

    var gallery = document.getElementById('imagegallery');
    var links = gallery.getElementsByTagName('a');
    for(var i=0;i<links.length;i++){
        links[i].onclick = function(){
//            showPic(this);
//            return false;
			return !showPic(this);
        };
        //links[i].onkeypress = links[i].onclick;
    };

}
function addLoadEvent(func){
    var old = window.onload;
    if(typeof window.onload != 'function'){
        window.onload = func;
    }else{
        old();
        func();
    }
}

addLoadEvent(countBodyChildren);
addLoadEvent(prepareGallery);